Is your 2008 Lexus IS250 key fob not working reliably, or has it stopped working altogether? Before you assume the worst, the most common culprit is often just a dead battery. Replacing the battery in your Lexus IS250 key fob is a straightforward and cost-effective solution you can easily handle yourself. This guide will walk you through identifying the correct battery and replacing it, ensuring your key fob is back in action in no time.
Finding the Right Battery for Your 2008 Lexus IS250 Key Fob
Lexus IS250 key fobs typically use either a CR1632 or a CR2032 battery. To determine the exact battery your 2008 Lexus IS250 key fob requires, you can consult your vehicle’s owner’s manual or use online battery finder tools by specifying your car’s year, make, and model. These batteries are widely available online for less than $6, making this a very affordable fix.
Step-by-Step Guide to Replacing Your Lexus IS250 Key Fob Battery
Replacing the battery in your 2008 Lexus IS250 key fob is a simple process that requires minimal tools. Here’s how to do it:
Opening Your Key Fob
The method for opening your Lexus IS250 key fob depends on whether you have a newer or older model.
- Newer Lexus IS250 Key Fobs: Look for a small, hidden key within your key fob. Remove this key to reveal a designated slot. Insert the key into this slot to carefully pry open the key fob casing.
- Older Lexus IS250 Key Fobs: If your key fob doesn’t have a hidden key slot, you’ll need a thin, flat object like a flathead screwdriver. Locate the small notch on the key fob casing. Gently insert the flathead screwdriver into this notch and twist carefully to pry the case open. Be cautious not to apply excessive force to avoid damaging the casing.
Accessing and Replacing the Battery
Once the key fob is open, you’ll see the internal components.
- Gently lift the circuit board: Carefully lift the circuit board to gain access to the battery compartment located underneath.
- Note the battery orientation: Before removing the old battery, take a moment to observe how it is positioned in the case. Pay attention to the positive (+) and negative (-) sides. This will ensure you install the new battery correctly.
- Replace the old battery: Remove the old battery and replace it with the new CR1632 or CR2032 battery, ensuring the polarity matches the original battery’s orientation.
Testing Your Key Fob
After inserting the new battery, carefully close the key fob case, ensuring it snaps back together securely. Now, test your Lexus IS250 key fob to see if it’s working properly. Press the buttons to lock, unlock, or activate other functions of your vehicle.
If your key fob still doesn’t work, double-check the battery installation. Make sure the battery contacts are clean and making good contact with the battery.
Understanding Different Types of Key Fobs
Key fobs come in various designs, each with slightly different features:
- Standard Remotes: Basic remotes with essential lock, unlock, and panic functions.
- Flip Keys: Keys attached to the remote that flip out for ignition.
- Remote Heads: Keys integrated into the remote, non-retractable.
- Fobik Keys: Remotes with a separate, hidden key blade.
- Smart Keys: Advanced remotes often associated with push-to-start systems, offering features like proximity unlocking.
When a New Battery Isn’t Enough
If replacing the battery doesn’t solve the issue with your 2008 Lexus IS250 key fob, there might be a more complex problem. In such cases, you might need to consider replacing the entire key fob. For Lexus IS250 key fob replacements and further assistance, visit keyfobprog.com.
